Device and method for detecting water content of sand-gravel aggregate

Abstract

The invention discloses a device and a method for detecting water content of sand-gravel aggregate. The device comprises a water content sensor data analysis module, a central processor module, an artificial neural network processor module, a water content data display and management module and a water content signal transformer module which are successively connected with each other, wherein thewater content sensor data analysis module is connected with a plurality of sensors; the sensors comprise two water content microwave sensors, two water content capacitance sensors and a temperature sensor; and the sensors are connected with the central processor module through the water content sensor data analysis module. The method comprises the following steps: simultaneously measuring parameters such as water content signals and material temperature of a plurality of material positions of the sand-gravel aggregate in a sand-gravel aggregate bin by using the water content sensor data analysis module, then calculating the water content of the sand-gravel aggregate by using a data fusion technology based on an artificial neural network algorithm so as to achieve seal-time detection of thewater content of the sand-gravel aggregate in a concrete batching process and improve stability and reliability of water content measurement data.

Description

technical field [0001] The invention relates to a device and method for detecting the moisture content of sandstone aggregate. Background technique [0002] The traditional sand and gravel moisture content detection uses a single sensor for measurement. This detection method is affected by the installation position of the sensor. The detected moisture content data fluctuates greatly, and the accuracy cannot be guaranteed. In the traditional single sensor detection method, once the sensor is damaged, it will directly affect the normal batching production of concrete. Due to the change of the flow density of the sand and gravel during the loading and unloading of the sand and gravel, the equivalent dielectric constant of the sand and gravel will change under the same moisture content. However, the moisture content microwave sensor and the moisture content capacitive sensor measure the moisture content of sand and gravel based on the equivalent dielectric constant of the sand a...

AI Technical Summary

Problems solved by technology

[0002] The traditional sand and gravel moisture content detection uses a single sensor for measurement. This detection method is affected by the installation position of the sensor. The detected moisture content data fluctuates greatly, and the accuracy cannot be guaranteed.

In the traditional single sensor detection method, once the sensor is damaged, it will directly affect the normal batching production of concrete. Due to the change of the flow density of the sand and gravel during the loading and unloading of the sand and gravel, the equivalent dielectric constant of the sand and gravel will change under the same moisture content. However, the principle of moisture content microwave sensor and moisture content capacitive sensor to measure the moisture content of sand and gravel is based on the equivalent dielectric constant of sand and gravel, which leads to inaccurate moisture content measurement data.

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